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No. 257,360. Patnted May2',18 82 Wtnesoas.

UNITED STATES PATENT "OFFICE.

REUBEN A. MESSERVEY, OF MEDEORD, ASSIGNOR, BY DIRECT AND ME SNE ASSIGNMENTS, T JOHN M. WATSON, TRUSTEE, 0F BROOK-LINE, -MASS.

HULL -O F VESSE LS.

SPECIFICATION forming part of Letters Patent N0. 257,360, dated May 2, 18 82.

To all whom it may concern:

Be it known that I, REUBEN A. MEssE RVEY,

of Medford, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Cooling and Condensing Apparatus for Marine Vessels, of which the following is a specification.

This invention relates to the coolingv and condensation of liquids and gasesemployed in m chemical refrigerating apparatus on marine 2Q andreturn to the refrigerating apparatus;

The invention has for its object to provide simple'means for protecting the pipes from injhfiouscontact with extcrnalobjects;--aui l to this end it consists in forming a longitudinal groove in the exterior surface ,of, the vessel and placing the pipes in said groove, as I will 7 now proceed to describe.

Of the accompanying drawings,forming'-a part of this specification, Figure 1 represents a side elevation of the hull df a vessel provided with my improvement. Fig. 2 represents an enlarged transversesection,showing a part of the hull.

The same letters of reference indicate the same parts in all the figures.

nected with a refrigerating apparatus employing a chemical refrigerant such as ammonia, anhydrous sulphurous oxide, or other chemical which becomes heated in the refrigerating process-said pipes extendingfrom the'appara- I tus below the surface of the water on which the vessel floats, and in contact with such water a suitable distance, and then'back to-the refrigerating apparatus, a suitable pump or forcing device being employed to insure the Application filed J'anna'ry-l'l, 1882. (No model.)

circulation of the refrigerant. Theheated re-' frigerant is cooled by the water in its passage through the pipes, and is ready to again perform its refrigerating function on itsreturn to o in saidgroove,'a's shown in Fig. 2, said pipes 5 5 passing at b b through the side of the vessel and being secured in the groove in any suitable manner. Said. groove is of such depth that the pipes will not project materially from it,

and will be thereby protected in a measure from injury by contact with external objects. The groove is located just .above the keel e, and in the inner portion of the re-entrant angle or recess formed by the vertical side of'the keel and the inclined side of the hull. angle or recess-constitutes an additional protection to the pipes and decreas'esthe chances of their being injured bycontact with external objects, so that the groove containing the pipes does not require'to bemade of such depth as 79 it wouldit made in an exposed portion of the: vessel--for example, in the bottom 'of the-keel- .son, as has been proposed heretofore.-

' 1 claim-- A marine or navigable" vessel having a lon- 5 gitudinal. groove in itsexteriorsurface located in the re-entr'ant angle or recess immediately above .the keelson, and apipe or pipes communicatin g with a refrigerating apparatusand placed in said groove, whereby said pipes, 80. 'while exposed to the cooling action of the waa represents a pipe or series of pipes con-- v lfrom'injuriouscontact with external objects, as set forth. l

In testimony whereof I havesigued my name 8 ter on which thcvessel floats, are protected to this specification, in the presence of two subscribing witnesses, this 12th day of January, A; D. 1882.

REUBEN A. MESSERVEY.- Witnesses: 1

G.F. BB0WN,.

SAMUEL WATSON JOHNSON.

This 

